<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>goods-special</title>
</head>
<body>
    {# default过滤器 指定默认值 #}
    <div>{{ name | default:"special goods"}}</div>
    {# safe过滤器 允许渲染html代码 #}
    <span>{{ web | safe }}</span>
</body>
</html>